Sprayer-nozzle.



R. E. cEcjL. v sPRAYER NoZZLE.

APPLICATION FILED NOV. I3, \9l3.

Patented June 5, 1917.

"m" mvEN-ro viivii of rig. 2, and

UNITED lsfrn'riis vPn'irina'r orricn.

BOiBERT E. CECIL, OF 4SEWIGKL'EY, PENNSYLVANIA, ASSIGNOB TO AIR-TIGHT STEEL TANK COMPANY, 0F PITTSBURGH, PENNSYLVANIA, vA. CORPORATION OF PENN- SYLVANIA.

SPBAYEB-NOZZLE.

` Specification of Letters Patent.

Application led November 13, 1913. Serial No. 800,767.

To all whom t may concern.' Be it known that I, RoenR'rE. Cnoii., a citizen of the United States, and resident of Sewickley, in the county of Allegheny and State of Pennsylvania, have invented a newA and useful Improvement in Sprayer- Nozzles, of which the following is a full, clear, and exact description, reference being had to the'accompan ing drawings, forming part of this speci cation, in which- Figure 1 is a longitudinal'sectional view of one form of nozzle.

Fig. 2 is a similar view of another form of nozzle. v

Fig. 3 is an end view of the nozzle shown in Fig. 2.

Fig. 4 is a sectional view on the line Fig. 5 is a sectional viewl of one of the nozzle disks. e

My invention has relation to sprayer nozzles, more particularly designed for use in connection with spraying apparatus for` trees and other vegetation, although it may be employed for other purposes.

The object of my invention is to provide a simple form of nozzle by means o which the liquid can be effectively sprayed.

The nature of my invention will be best understood by reference to the accompanyin drawings in which I have shown two di erent modifications, and which will now be described, it being' premised, however, that various changes can be made in the details of construction and arran ement of the various parts without departing from the spirit and scope of my invention as defined in the appended claims.

Referring first to that form of my invention which is shown in Fig. 1, the numeral 2 designates a nozzle shell orcasing. In this figure the nozzle is of twin form, having an extension 2a. The shell or casing is provided with an inlet connection at 3 for 'air under pressure having an extension 3a. The shell or casing is also provided with an inlet 4 for the liquid to be sprayed. This -inlet opens into a chamber 5 lin the extension 2, The chamber 5 surrounds the extension 3 of the air inlet. rIhe air inlet terminates short of the front end of the chamber and is partially closed by a screw plug 6 which has a iice 158/.

thereof struck upwardly as indicated at 9 to formtwo or more tangentially arranged discharge openings 10. In the construction shown, ranged Lat opposite sides of the center of the disk and discharge in oppositev directions into a space 11 between the plate 8 and another plate or'disk 12. The plate or disk 12 is held away from the plate or disk 8 by means of a separator ring 13; and the two plates or disks are held in place by a retaining sleeve 14, which is screwed on the end of each branch 2a of the shell or casing. The disk 12' has its central portion. struck outwardly as indicated at 15. This outpreferably extends between the two orifices 10 and in thes'ame direction as the direc- Patented June 5, 1917.

these discharge openings are arf wardly struck portion is of oblong form and tion of discharge from said orifices 10. At

the center of this outwardly struck portion 14 is a discharge orifice 15a.

The operation will be readily understood. The air under pressure discharged through the plug 7 comesv in contact with the rela tively thin body of liquid between the forward end of said plug and the diskor plate 8. Portions of the liquid are forced by the air through the discharge openings 10` of said disk and into the space 11 intermediate the disks 8 and 12. The inner surface of the outwardly struck portion 15 is of concave form, converging toward the discharge ori- Tlie liquid is discharged through this orifice in a fan-like sheet lying in a plane which is substantially perpendicular to the plane of section of Fig. 4.

The form of sprayer nozzle shown in the other figures is substantially' the same as the one above described. In these'iigures, 3" designates the air inlet having the' single passage 3"', and 4a designates the single inlet for the liquid to be sprayed and which discharges into the chamber 5a. In thisform the shell or casing may be constructed of a T-shaped fitting 16 into the rear end o which is screwed a disk or plug 17 carrying the inlet connection 3b. The nozzle proper is carried by a tubular section 18 which is 4 screwed within and forms an extension of the opposite arm of the T. The nozzle proper is of the same construction as in the form rst described. v

It will readily be understood by those familiar with the art that the shape of the various disks may be varied to meet different Y ,requirements and the size, shape and position of the openings therethrough maybe variedV within the scope of my invention.

`lZVhile I prefer to employ the two disks 8 and l2, good results may be obtained by omitting the disk 8 and using only the disk 12. For some purposes also the connectlon for air under pressure may be omitted, the liquid to be sprayed being forced into the chamber 5 of the nozzle under pressure.

What I claim is:

1. A sprayer nozzle having an inner spraying member formed with two outwardly offset portions at opposite sides of the nozzle center and extending in a tangential direction, each of said portions having a discharge opening at its inner end, and another spraying member in front of the inner spraying member, said last mentioned member having a fiat inner wall and a central recess of greater length than width and a central perforation, said recess having its inner surfaces converging toward said perforation, the length of said recess lying in the same direction as the offset portions ofthe inner spraying member and between said portions; substantially as described.

2. A sprayernozzle having a chamber for the liquid to be sprayed, a platel or disk forming the front wall of said chamber and having portions thereof struck outwardly to form eccentrically located discharge open'- ings. arranged to discharge in a generally tangenital direction, and another plate or disk in front of and separated from the rst ynamed disk, the latter having a central discharge orice and a central recess of greater length than width on its inner face communicating with said discharge orifice, the length of said recess lying between the eccentrically located discharge openings in the other disk; substantially as described.

3. A vsprayer nozzle having an inclosed chamber for the liquid to be sprayed, a plate or disk forming the front wall of said chamber and having a portion thereof struck outwardly to form an eccentrically located discharge opening arranged to discharge in a generally tangential direction, asecond plate or disk in front of and separated fromthe -said first named disk, the latter having a central discharge` orifice with surfaces converging toward said orlfice, said nozzle also having a connection for a liquid leading to the chamber, and means for introducing air into said chamber at a point adjacent to the center of the first disk to spray the liquid through the opening vin lthe disk; substantiaily as described.

4. Asprayer nozzle having a central air chamber, means for admitting air to said chamber, an annular liquid chamber surrounding said air chamber, means Vfor'admitting liquid to said annular chamber, a disk member forming the front wall of the liquid chamber, there being a central opening from the air chamber extending into the' liquid chamber, the air being arranged to impinge against said disk member, said disk member having a pluralityV of tangentially arranged openings on oppositey sides of the air discharge opening, a second v disk-like member in front of the first disk-like member, there being a chamber between said disk members, said last mentioned disk member having a central opening for the dischargey of the combined oil and air; substantially as described. l l

5. A sprayer nozzle having a central air chamber, means for admitting airto said chamber, an annular liquid chamber surrounding said air chamber, means for admitting liquid to said annular chamber, a disk member forming the front wall of the liquid chamber, there being a central opening from the air chamber extending into the liquid chamber, the air being arranged to impinge against said disk member, said disk In testimony whereof I have hereunto Set 10;

my hand. J

' ROBERT E'CECIL. Witnesses:

JESSE B. Humain,

M. CoRwIN. 

